You can see the recommended settings in Development Environment. If different settings are stated in the development guide, you are advised to use the recommended settings.
To use the Xamarin SDK of Site Kit, you need to install Visual Studio on your computer. When installing Visual Studio, please select the Mobile development with .NET option. For details, please refer to Xamarin Environment Setup and Xamarin.Android Environment Setup.
You can see the recommended settings in Development Environment. If different settings are stated in the development guide, you are advised to use the recommended settings.